The effect of fuel injection on the flow and the spray/swirl and spray/piston interactions in direct-injection diesel engines have been investigated by simulating diesel sprays with gaseous jet(s) injected through centrally located, single- and multi-hole nozzles into the quiescent and swirling air of a motored engine running at 200rpm and incorporating a flat piston and a re-entrant piston-bowl. The axisymmetric velocity field with and without ‘fuel’ injection was characterised by laser velocimetry near TDC of compression in terms of spatially-resolved ensemble-averaged axial and swirl velocities, the ‘fuel’ concentration field was quantified by laser Rayleigh scattering and the two-dimensional flow was visualised by gated still photography using hollow microballoons as light scatterers.


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    Titel :

    Gaseous Simulation of Diesel-Type Sprays in a Motored Engine


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Arcoumanis, C. (Autor:in) / Whitelaw, J.H. (Autor:in) / Wong, K.Y. (Autor:in)

    Kongress:

    SAE International Congress and Exposition ; 1989



    Erscheinungsdatum :

    1989-02-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Gaseous simulation of diesel-type sprays in a motored engine

    Arcoumanis,C. / Whitelaw,J.H. / Wong,K.Y. et al. | Kraftfahrwesen | 1989


    GASEOUS SIMULATION OF SINGLE-HOLE DIESEL SPRAYS

    Gosman, A D / Arcoumanis, C / Whitelaw, J H et al. | SAE Technical Papers | 1987


    Gaseous simulation of single-hole diesel sprays

    Arcoumanis,C. / Gosman,A.D. / Whitelaw,J.H. et al. | Kraftfahrwesen | 1987


    Large eddy simulation of motored engine

    Zhang,H. / Kobayashi,T. / Taniguchi,N. et al. | Kraftfahrwesen | 2000


    In-Cylinder Velocity Field Measurements in a Motored Diesel Engine

    Puglisi, A. / Vafidis, C. / Cipolla, G. | SAE Technical Papers | 1987